12-Letter Words Matching P__________M

There are 26 12-letter words that match P__________M. 4 are common words, such as PAROCHIALISM and PHILISTINISM. A rarer one is PTERIDOSPERM. In this set, I is the most frequent open letter (25 words). 2 words contain a doubled letter.

Full list 26

Common words

parochialismphilistinismpraseodymiumprotactiniumparachronismparamorphismperinephriumperionychiumphilosophismphotorealismphototropismpleomorphism
parochialismphilistinismpraseodymiumprotactiniumparachronismparamorphismperinephriumperionychiumphilosophismphotorealismphototropismpleomorphismpoikilothermpolymorphismpragmaticismprocommunismpropagandismprothalamiumpsychologismparkinsonismpictorialismpolycentrismpolyglottismpseudopodiumpseudorandompteridosperm

About this list

Words
26 (4 common words)
Common example
parochialism
Rare example
pteridosperm
Doubled letters
2
Ending in S
0
Most frequent letter
I (25)

Questions

How many 12-letter words matching p__________m are there?

26. 4 of them are common words.

What is a common example?

PAROCHIALISM is among the common words in this set.